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G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
G04B19/00—Indicating the time by visual means
G04B19/34—Position of the hands projected optically
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FR586508D1923-12-061923-12-06Dispositif pour la projection de l'image lumineuse des cadrans de montre ou de pendule, au plafond ou sur un mur
ExpiredFR586508A
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